bragg



(No Model.) 2 Sheets-Sheet 1.

E. B. BRAGG. TANK FOR CONVEYING ACIDS.

No. 511,674. Patented Dec. 26, 1893.

f FF? m (No Model.) 2 SheetsSheet 2.

E. B. BRAGG. TANK FOR CONVEYING ACIDS.

No. 511,674. Patented Dec. 26,1893.

' WiT neaaea/ J nvewl/Tm/ RB/055R Enardt 73.13ra5g 4 /W ZMMM aZto'Ln eame COMPANY TATES N rrn "ArnNr Cr mea EVERETT B. BRAGG, OF CLEVELAND,OHIO, ASSIGNOR TO THE GRASSELLI CHEMICAL COMPANY, OF SAME PLACE.

TANK FOR CONVEYING ACIDS.

SPECIFICATION forming part of Letters Patent No. 511,674, dated December26, '1893.

Application filed March 10. 1893- erial No, 465,411. (No model.)

T0 aZZ whom it may concern.-

Be it known that I, EVERETT B. BRAGG, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Tanks for ConveyingAcids; and I do hereby declare that the following is a full, clear, andexact description of the invention, which will enable others skilled inthe art to which it appertains to make and use thesame.

Myinvention relates to tanks for conveying acids upon cars, and theinvention consists in the construction of a tank substantially as shownand described and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of one ofmyimproved tanks, and Fig.2 is a cross section thereof on line 00, 00,Fig. 1. Fig. 3 is a sectional view of a part of the head or end of atankand of other associated parts taken on a line corresponding to line y,y, Fig. 2. The parts here are very considerably enlarged over the otherviews to more clearly disclose their construction. Fig. 4. is an insideelevation of one of the heads or ends of the tank with part of therubber cover torn loose and thrown back, and Fig. 5 shows the means forsecuring and adjusting the ends of the hoops or hands and for tighteningthem upon the tank or cask, substantially as shown and described.

The object of the invention is to provide a tank adapted to transportacids on cars, and especially muriatic acid, and the construction of thetank or cask is such about its head that it can be tightened to take upshrinkage without being obstructed by the head, and utilized forshipping in cars without injury, all substantially as hereinafter fullydescribed- Heretofore it has been customary to build tanks for shippingmuriatic acid in such way that they would lie endwise in the cars, buttanks so built and arranged were liable .to great strain upon theirheads by the swashing of the large body of acid back and forth incidentto the movements of the cars. According to my invention the tanks areconstructed to lie transversely of the car with their ends at the sidesof the car, so that the movements of the acid in the tanks will not beagainst the ends to spring leakage and the like, but up against thecircular inside of the tank where it can roll and spend its forcewithout doing any injury. To these several ends I construct the body ofthe tank out of .a suitable number of heavy staves a, which aresaturated with oil so as to prevent attack by the acid, and these stavesare bound together by a series of heavy bands or hoops c, which havethreaded ends and nuts a locking them in the heads d of the connectingstrap E. The ends of the hoops are rounded in cross section and passedthrough holes in the heads at and the nuts 0' are tightened so as tobind the staves firmly together. Then as shrinkage of the staves occursthe cask or tank is kept tight by simply turning up the nuts 0, and inthis Way the tank can be kept as close about its sides as it need be toprevent leakage. Now having the body of the tank constructed and boundtogether in this Way, I accommodate the head of the tank to thisstructure, so that shrinkage may occur in the body without affecting thehead or being affected thereby, by providing a head G of iron, or othersuitable material, which preferably has flat inner and outer surfacesand is adapted to rest against the ends of the staves, but projectslaterally beyond the said staves all around sufficiently to provide a.flange or rim for the connecting rods h, which bind the said heads orends together. These heads or ends are alike in construction, and haveat frequent intervals about their edge or flange portion a series ofholes 9 through which said tie rods h pass, said rods being threaded andprovided with nuts for drawing the heads tight against the ends of thetanks or casks. It will be noticed that the said heads or ends beardirectly against the ends of the staves, and in order that they may beprotected from the action of the acid, I affix, first, a heavy coat orcover of pure gum rubber k or other suitable acid resisting material,upon the inside face of said heads. Then I employ a gasket Z of likematerial against which the ends of the staves bear directly and make aclose joint for the parts. When the parts are thus constructed, arrangedand connected the rods h are tightened up and the tank or cask is readyfor use. But the said heads arelarge and heavy, and hence in order thatthey may be held in proper position and relation upon the tank andsupported thereby instead of having the support come upon the tie rods,1 form upon their upper portions the inwardly projecting. flange oroverlapping lip m, shown clearly in Fig. 3, said flange overreaching thestaves and the end band or hoop in this instance, and carrying theweight of the head. This flange extends around about one-third of theedge of the head so'as to keep the head in place all around.

Having thus described my invention, what I claim is- 1. A tank forconveying acids, comprising the body portion constructed of woodenstaves boundtogether by bands or hoops and means for adjusting andtightening said bands or hoops, combined with metal heads having plaininterior surfaces to abut against the ends of the staves, and partialcircumferential flanges at their upper portions overlying the staves tosupport said heads in place, an

acid-resisting covering for the plain interior surfaces of said heads,and connecting rods for securing said heads in place, substantially asdescribed. I

2. A tank for conveying acids, comprising the body portion constructedof wooden staves bound together by bands or hoops and means fortightening and adjusting said bands or hoops, combined with metal headshaving l/Vitness my hand to the foregoing speoifi- 5 cation this 18thday of February, 1893.

EVERETT B. BRAGG.

\Vitnesses:

H. T. FISHER, GEORGIA SCHAEFFER.

